Service manual
Table Of Contents
- COVER
- CAUTION
- Safety precautions
- CONTENTS
- 1-1 Specifications
- 1-2 Handling Precautions
- 1-3 Installation
- 1-4 Maintenance mode
- 1-5 Trouble Shooting
- 1-5-1 Paper misfeed detection
- 1-5-2 Self-diagnosis
- 1-5-3 Image formation problems
- (1) No image appears (entirely white).
- (2) No image appears (entirely black).
- (3) Image is too light.
- (4) Background is visible.
- (5) A white line appears longitudinally.
- (6) A black line appears longitudinally.
- (7) A black line appears laterally.
- (8) One side of the copy image is darker than the other.
- (9) Black dots appear on the image.
- (10)Image is blurred.
- (11)The leading edge of the image is consistently misaligned with the original.
- (12)The leading edge of the image is sporadically misaligned with the original.
- (13)Paper creases.
- (14)Offset occurs.
- (15)Image is partly missing.
- (16)Fixing is poor.
- (17)Image is out of focus.
- (18)Image center does not align with the original center.
- (19)Image is not square.
- (20)Image contrast is low (carrier scattering).
- 1-5-4 Electrical problems
- (1) The machine does not operate when the main switch is turned on
- (2) The drive motor does not operate when (C200)
- (3) The scanner motor does not operate.
- (4) The toner feed motor does not operate
- (5) Cooling fan motor 1 does not operate
- (6) Cooling fan motor 2 does not operate
- (7) Cooling fan motor 3 does not operate
- (8) The drawer motor does not operate
- (9) The registration clutch does not operate
- (10) The upper paper feed clutch does not operate
- (11) The lower paper clutch does not operate
- (12) Paper feed clutch (ST) 1 does not operate
- (13) Paper feed clutch (ST) 2 does not operate
- (14) The bypass paper feed clutch does not operate
- (15) The cleaning lamp does not turn on
- (16) The exposure lamp does not turn on
- (17) The exposure lamp does not turn off
- (18) The fixing heater does not turn on (C610)
- (19) The fixing heater does not turn off
- (20) Main charging is not performed
- (21) Transfer charging is not performed
- (22) No developing bias is output
- (23) The original size is not detected
- (24) The original size is not detected correctly
- (25) The message requesting papaer to be loaded is shown when paper is present
- (26) The message requesting papaer to be loaded is shown when paper is present in the upper drawer
- (27) The message requesting papaer to be loaded is shown when paper is present in the lower drawer
- (28) The size of paper in the upper drawer is not displayed correctly
- (28) The size of paper in the upper drawer is not displayed correctly
- (29) The size of paper in the lower drawer is not displayed correctly
- (30) The printing width of the paper on the bypass is not detected correctly
- (31) A paper jam in the paper feed, paper conveying or fixing section is indicated when the main switch is turned on
- (32) The message requesting covers to be closed is displayed when the front cover, paper conveying unit and lower drawer left
- (33) Others
- 1-5-5 Mechanical problems
- 1-6 Assembly and disassembly
- 1-6-1 Precautions for assembly and disassembly
- 1-6-2 Paper feed section
- (1) Detaching and refitting the upper and lower paper feed pulleys
- (2) Detaching and refitting the bypass paper feed pulley
- (3) Detaching and refitting the left registration cleaner assembly
- (4) Detaching and refitting the right registration cleaner assembly
- (5) Detaching and refitting the bypass paper width switch
- (6) Adjustment after roller and clutch replacement
- 1-6-3 Optical section
- (1) Detaching and refitting the exposure lamp
- (2) Detaching and refitting the scanner wires
- (3) Detaching and refitting the laser scanner unit
- (4) Adjusting the skew and vertical shifting of the laser scanner unit
- (5) Detaching and refitting the ISU (reference)
- (6) Adjusting the position of the ISU (reference)
- (7) Adjusting the longitudinal squareness (reference)
- (8) Adjusting magnification of the scanner in the main scanning direction
- (9) Adjusting magnification of the scanner in the auxiliary scanning direction
- (10) Adjusting the scanner leading edge registration
- (11)Adjusting the scanner center line
- (12) Adjusting the margins for scanning an original on the contact glass
- 1-6-4 Main charging section
- 1-6-5 Drum section
- 1-6-6 Developing section
- 1-6-7 Transfer section
- 1-6-8 Cleaning section
- 1-6-9 Fixing section
- 1-7 Requirements on PCB Replacement
- 2-1 Electrical Parts Layout
- 2-2 Electrical parts layout
- 2-3 Operation of the PCBs
- 2-4 Appendixes
2AV/X
2-3-9
Terminals (CN) Voltage Remarks
2-3
1-2 1-1 3.3 V DC 3.3 V DC supply from PSPCB, input
1-5, 6 1-3, 4 5 V DC 5 V DC supply from PSPCB, input
1-9, 10 1-7, 8 24 V DC 24 V DC supply from PSPCB, input
3-1 3-2 12 V DC 12 V DC supply from PSPCB, input
3-3 1-3 0/5 V DC FH on/off, output
3-4 1-7 0/24 V DC MSW on/off, input
3-5 1-7 24 V DC 24 V DC supply for MSW, output
3-6 3-8 5 V DC 5 V DC supply for RSW, output
3-7 3-8 0/5 V DC RSW on/off, input
3-10 3-9 0/5 V DC PSW-U on/off, input
3-11 3-9 5 V DC 5 V DC supply for PSW-U, output
4-1 4-2 24 V DC 24 V DC supply for HVTPCB, output
4-3 4-2 0/5 V DC Main charging on/off, output
4-4 4-2 0/5 V DC Developing bias on/off, output
4-5 4-2 0/5 V DC Transfer charging on/off, output
4-6 4-2 0 - 5 V DC GRID control voltage, output
4-7 4-2 0 - 5 V DC Developing bias control voltage, output
4-8 4-2 0 - 5 V DC Transfer charging control voltage, output
4-9 4-2 0/5 V DC Main charging ALM signal, input
4-10 4-2 0/24 V DC RCL on/off, output
4-11 4-2 24 V DC 24 V DC supply for RCL, output
4-12 4-2 0/24 V DC BYPPFCL on/off, output
4-13 4-2 24 V DC 24 V DC supply for BYPPFCL, output
4-14 4-2 0/24 V DC PFCL-U on/off, output
4-15 4-2 24 V DC 24 V DC supply for PFCL-U, output
5-1 5-2 0/5 V DC Duplex unit*
4
detection signal, input
5-3 5-2 0/24 V DC FSSOL*
4
latch-on signal, output
5-4 5-2 0/24 V DC FSSOL*
4
actuate signal, output
5-5 5-2 24 V DC 24 V DC supply for FSSOL*
4
, output
5-7 5-6 0/5 V DC DUPPCSW2*
4
on/off, input
5-8 5-6 5 V DC 5 V DC supply for DUPPCSW2*
4
, output
5-10 5-9 0/5 V DC DUPPCSW1*
4
on/off, input
5-11 5-9 5 V DC 5 V DC supply for DUPPCSW1*
4
, output
6-1 6-3 5 V DC 5 V DC supply for BYPPSW*
1
, output
6-2 6-3 0/5 V DC BYPPSW*
1
on/off, input
6-4 6-7 0/5 V DC BYPPWSW width detection signal, input
6-5 6-7 0/5 V DC BYPPWSW width detection signal, input
6-6 6-7 0/5 V DC BYPPWSW width detection signal, input
7-1 7-2 ETTH detection voltage, input
7-3 7-2 HUMSENS detection voltage, input
7-4 7-2 5 V DC 5 V DC supply for HUMSENS, output
8-1 8-22 24 V DC 24 V DC supply for lower drawer*
2
, optional drawer*
3
, output
8-2 8-22 24 V DC 24 V DC supply for lower drawer*
2
, optional drawer*
3
, output
8-3 8-22 0/24 V DC PFCL-L*
2
on/off, output
8-4 8-22 0/24 V DC PFCL (ST) 1*
3
on/off, output
8-5 8-22 0/24 V DC PFCL (ST) 2*
3
on/off, output
8-6 8-22 5/0 V DC (pulse) SSW3*
2
scan signal, output (SCAN1)
8-7 8-22 5/0 V DC (pulse) SSW3*
2
scan signal, output (SCAN2)
8-8 8-22 5/0 V DC (pulse) SSW3*
2
scan signal, output (SCAN3)
8-9 8-22 5/0 V DC (pulse) SSW3*
2
return signal, input (SENS0)
8-10 8-22 5/0 V DC (pulse) SSW3*
2
return signal, input (SENS1)
8-11 8-22 5/0 V DC (pulse) SSW3*
2
return signal, input (SENS2)
8-12 8-22 5/0 V DC (pulse) SSW3*
2
return signal, input (SENS3)
8-13 8-22 5/0 V DC (pulse) SSW3*
2
return signal, input (SENS4)
8-14 8-22 5/0 V DC (pulse) SSW3*
2
return signal, input (SENS5)
*1: For 20 cpm copier only. *2: Standard for 20 cpm copier/optional for 15 cpm copier.
*3: Optional for both 20 cpm and 15 cpm copiers. *4: Optional for 20 cpm copier only.